Diary written by Huntington between September 1899 and June 1905. Includes descriptions of his "mission" to California from October to November 1899, lists of people visited, and descriptions of sites visited near Sacramento, San Francisco, San Bernadino, and Los Angeles. Also includes meetings attended and people visited in Utah Valley as a member of the Presidency of High Priests in the Utah Stake. Includes an historic account he heard about a Mr. Harlem who received an order from Brigham Young to save the Fancher party from the conflict at Mountain Meadows, and reported Young wept when hearing he was too late. Also includes accounts of meeting with Church leaders, including Patriarch John Smith, Joseph F. Smith and Reed Smoot. Also includes the account of visits with, and the death, of his sister Zina D. H. Young, and a dream by John Binks from 1894 about Jospeh F. Smith eventually becoming president of the Church. Includes his ordination to the office of patriarch by Reed Smoot in November 1901, and subsequent training, service, and travels related to the calling. Huntington gave his first blessing to Emma Lucy Gates, who went on to be a reknowned vocal performer in opera. Also includes a summary of a discussion he had with Reed Smoot on priesthood. The ending pages include brief notes of talks given and names of people. Dated 1899-1905.